| Primary satellite | Secondary satellite |
| Name | COSMOS 2251 DEB | FENGYUN 1C DEB |
| Spacetrack catalog number | 37530 | 30275 |
| Radar cross section | small | small |
| Epoch of two-line elements (UTC) | 2024 Dec 19 01:13 | 2024 Dec 23 04:31 |
| Time of closest approach (UTC) | 2024 Dec 23 17:58:13.354 |
| Minimum distance | 3.658 km |
| Height difference | 3.533 km |
| Relative speed | 14.855 km/s |
| Angle between velocity vectors | 169° |
| Geographic position | 48.1°N, 60.8°E |
| Height | 782 km |
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